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fzus63 kmqt 180800
glfls 
expires:202106181600;;445340

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 18 2021

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...a trough across lake superior will deepen to 29.6 
inches over northern lake superior this morning and expand across
the eastern half of the lake friday evening. the troughing will 
weaken over lake superior saturday morning as a weak 29.8 inch 
ridge shifts over the region. a 29.5 inch area of low pressure 
will approach from the west sunday and move over lake superior 
sunday night. weak 29.8 inch ridging returns over western portions
of lake superior monday evening and builds to 29.9 inches as it 
shifts across the lake on tuesday.


lsz162-181600-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt fri jun 18 2021 /300 am cdt fri jun 18 2021/

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet building to 1 to 3 feet. 
.today...west winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.tonight...north winds 10 to 20 knots becoming east 5 to 15 knots
after midnight, then backing northwest late. waves subsiding to
calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots backing east
after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. showers. waves calm to
2 feet. 
.sunday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. showers likely through midnight,
then a chance of showers after midnight. waves building to 1 to
3 feet. 
.monday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.tuesday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$
fzus63 kmqt 180800
glfls 
expires:202106181600;;445341

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 18 2021

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...a trough across lake superior will deepen to 29.6 
inches over northern lake superior this morning and expand across
the eastern half of the lake friday evening. the troughing will 
weaken over lake superior saturday morning as a weak 29.8 inch 
ridge shifts over the region. a 29.5 inch area of low pressure 
will approach from the west sunday and move over lake superior 
sunday night. weak 29.8 inch ridging returns over western portions
of lake superior monday evening and builds to 29.9 inches as it 
shifts across the lake on tuesday.


lsz263-181600-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 am edt fri jun 18 2021

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet building to 1 to 3 feet. 
.today...west winds 15 to 25 knots diminishing to 10 to 20 knots
late. waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight, then backing northwest late. waves subsiding to calm to
2 feet. 
.saturday...north winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots backing south
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers through early afternoon, then
showers by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots. showers and a
chance of thunderstorms through midnight, then a chance of
showers after midnight. waves building to 1 to 3 feet. 
.monday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 

$$

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